Methods for the dehydrochlorination of 1,1,1,3-tetrachloropropane to 1,1,3-trichloropropene
US8877991B2 · kind B2 · utility
1Cited by
3References
20Claims
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Key dates
| Filing date | Feb 17, 2014 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Feb 17, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/25
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a method to improve 1,1,3-trichloropropene selectivity in HCC-250fb (1,1,1,3-tetrachloropropane) dehydrochlorination. In normal practice, FeCl3 is used as the catalyst for the dehydrochlorination of HCC-250fb to produce 1,1,3-trichloropropene. In this invention as source of water is added into the reaction system to inhibit the formation of high boiling compounds such as pentachlorocyclohexene and/or hexachlorocyclohexane. Once source of water is H2O itself. Another source of water is one or more hydrated metal halides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.